This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80AX60S, with the same bore, stroke, output force, port and mounting, so it fits the same application. The SAI replacement keeps the same ISO 15552 mounting interface, bore, stroke, output force and accessories, so it drops straight into existing fixtures. It is the current-production version of this cylinder with an upgraded piston seal.

The AirTAC SI80 Standard Air Cylinder SI80AX60S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 60mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80AX60S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI80AX60S is a discontinued double-acting ISO 15552 profile cylinder featuring an 80mm bore, 60mm stroke, and an SUS420J2 stainless steel rod. It delivers 2513 N of push force at 0.5 MPa through a G3/8 port. AirTAC replaced this legacy unit with the SAI80AX60S, a direct sharing the exact ISO 15552 mounting interface, bore, and output force.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and extended life. This -S model includes a piston magnet for legacy CS1-B/DS1-B sensors, while the SAI family adds SAIL, SAIF, and BSAI lock variants the SI lacked.
| Model | Airtac SI80 Standard Air Cylinder SI80AX60S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80AX60S |
| Bore size | Ø80 mm |
| Stroke | 60 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| Rod thread | M20×1.5 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 36 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAI80AX60S carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
The SAI80AX60S produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×60 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Legacy SI-family variants: SID (double rod), SIJ (adjustable stroke) — each maps to its SAI equivalent (SID→SAID, SIJ→SAIJ). Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B).
Leverages the SUS420J2 rod for corrosion resistance while providing 2513 N of clamping force in humid production zones.
Uses the 60mm stroke to push heavy packages on packaging lines, safely handling a 1508 N working load.
Acts as a robust 80mm bore stopper in material handling, decelerating loads via its 36mm adjustable air cushions.
To replace the SI80AX60S, order the SAI80AX60S. Confirm your ISO 15552 mounting fixture, the G3/8 port thread, and the M20x1.5 rod-end thread. The -S magnet allows CS1-B/DS1-B switches; the SAI replacement uses current AirTAC sensors. If you need more force, the 100mm bore provides 3927 N push at 0.5 MPa; if less is required, the 63mm bore offers 1559 N. A plain cylinder drifts on air loss, so for load holding use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant.
Replacement checklist
Yes, the SI80AX60S is discontinued. The direct replacement is the SAI80AX60S. It shares the identical ISO 15552 mounting interface, 80mm bore, 60mm stroke, force, and G3/8 port, fitting existing fixtures perfectly.
It features a G3/8 air port and provides 2513 N push / 2268 N pull at 0.5 MPa, 3518 N push at 0.7 MPa, 4523 N push at 0.9 MPa, and a theoretical max of 513 kgf at 1.0 MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80AX60S replacement — usually within 7-8 hours.